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Journal Educational Research and Development
Published by Global Scients Publisher
ISSN : -     EISSN : 30639158     DOI : https://doi.org/10.62379/jerd
Core Subject : Education,
Education Languange, Linguistic, Communication & Media Other
Journal Educational Research and Development ( E-ISSN : 3063-9158) is a scientific journal managed by Global Scients Publisher intended to disseminate the results of scientific works that have been made by lecturers, teachers, alumni and experts. In addition, the scientific journal is intended as a means of communication between educators both as a lecturer, as a teacher and as an alumni in order to disseminate information and develop education in general through research results and other forms.
Arjuna Subject : Umum - Umum
Articles 142 Documents
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Modeling Micro-Scale Heatwaves: Thermal Dynamics of a Contained Infrared Dryer Using Specular Reflectors Arifin, Savindra Atharizqi; Habibie, Afkar Khaizuran Hamiz; Alfarezel, Muhammad Javier; Zunnurain, Reynald Fathullah; Tsaqif, Rakan; Gamanik, Nisrina Meta
Journal Educational Research and Development | E-ISSN : 3063-9158 Vol. 2 No. 3 (2026): Januari - Maret
Publisher : GLOBAL SCIENTS PUBLISHER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62379/jerd.v2i3.1028

Abstract

This research analyzes and models the thermal dynamics of a low-cost, contained dryer system designed to optimize infrared heat transfer. The concept of a “micro-scale heatwave” is introduced to describe the concentrated and controlled thermal environment within the system. An experimental method was employed through the construction of a prototype using an incandescent bulb as an infrared heat source and aluminum foil as a specular reflector. System performance was evaluated by comparing dehydration rates, temperature distribution, and energy consumption between a configuration with the reflector and a control configuration without the reflector. The results indicate that the use of a specular reflector reduces average drying time by up to 41% and increases the temperature at the target material by approximately 22%, while maintaining nearly identical energy consumption. These findings demonstrate that internal surface modification using reflective materials is an effective strategy for enhancing infrared heat transfer efficiency in small-scale thermal systems.
UPIN: Utilization of Pinus Fruit Extract as an Eco-Friendly Natural Dye for Textile Applications Zahra, Asa Kafatima; Nabila, Salwa; Audya, Salsabila; Nurhayati, Aprilia; Syita, Adhya Zahratu
Journal Educational Research and Development | E-ISSN : 3063-9158 Vol. 2 No. 3 (2026): Januari - Maret
Publisher : GLOBAL SCIENTS PUBLISHER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62379/jerd.v2i3.1029

Abstract

The extensive use of synthetic dyes in the textile industry has caused significant environmental problems, creating an urgent need for alternative color sources derived from renewable and eco-friendly materials. This study investigates the feasibility of utilizing pine fruit extract as a natural dye for textile applications using a water-based extraction method. Pine fruits were extracted without chemical additives, and the resulting colorant was applied to natural fiber textiles using various mordants to improve color fixation. The results indicate that water extraction is effective in obtaining tannin-based pigments from pine fruits, producing stable brown color shades. The application of natural mordants improved color intensity and uniformity, while maintaining an environmentally safe production process. These findings demonstrate that pine fruit extract has strong potential as an eco-friendly natural dye and supports sustainable and zero-waste textile practices

Page 15 of 15 | Total Record : 142

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